fix(ui) - Trainer setup layout

[philmoz]

Update the trainer setup page layout to:

• remove small amount of scroll of landscape layout
• use available space on portrait layout

[froqstar]

Isn't there enough space to replace the := and += with text like "replace" and "add"?
Would be more user friendly IMHO.

[pfeerick]

There should be... and I don't see why not... the Multiplex option for mixes is also spelled out, so it would also be consistent with how it's shown there.

[philmoz]

Isn't there enough space to replace the := and += with text like "replace" and "add"?
Would be more user friendly IMHO.

This will require changing the TR_TRNMODE string and getting translations for 'Replace' and 'Add' for all languages.
The layout will then need to be tweaked to fit the longest translated string.

I should be able to get the translations from the TR_VMLTPX strings in the language files.

[pfeerick]

#define TR_VMLTPX                      "Add","Multiply","Replace"

;)